kern/82084: FreeBSD 5.2 and 5.3 panic on boot from floppy

[Thomas D. Dean]

>Number:         82084
>Category:       kern
>Synopsis:       FreeBSD 5.2 and 5.3 panic on boot from floppy
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Jun 09 18:50:23 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     Thomas D. Dean
>Release:        5.3
>Organization:
Self
>Environment:
Did not get that far.  From the screen output:
FreeBSD 5.3-RELEASE #0: Fri Nov 4 04:19:18 UTC 2004
  root at harlow.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC

>Description:
NOTE: THIS MACHINE IS A DEC CELEBRIS XL5133DP, ABOUT 11 YEARS OLD.
THE SCSI INTERFACE MAY HAVE A PROBLEM.  FREEBSD 4.5 SEEMED TO INSTALL
OK, BUT, WILL NOT GET PAST THE BOOT MANAGER PROMPT.

POST REVEALS NO PROBLEM AND ID's THE DISK DRIVE OK.

      ...
FreeBSD 5.3-RELEASE #0: Fri Nov 4 04:19:18 UTC 2004
  root at harlow.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU Pentium/P54C (128.01-Mhz 586-class CPU)
  Origin="GenuineIntel" Id = 0x525 Stepping = 5
  Features=0x3bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,APIC>
real memory  = 100663296 (96 MB)
avail memory = 84664320 (80 MB)
MPTable: <Preset Config 5>
Intel Pentium detected, installing workaround for F00F bug
ioapic0 <version 1.1> irqs 0-15 on motherboard
  ACPI-0159: *** Error AcpiLoadTables: Could not get RSDP, AE_NO_ACPI_TABLES
  ACPI-0123: *** Error AcpiLoadTables: Could not load tables:AE_NO_ACPI_TABLE
ACPI: table load failed: AE_NO_ACPI_TABLES
npx0: [FAST]
npx0: <math processor> on motherboard
npx0: INT 16 interface

Fatal trap 12: page fault while in kernel mode
fault virtual address    = 0x22
fault code               = supervisor read, page not present
instruction pointer      = 0x08:0xc07aedca
stack pointer            = 0x10:0xc1021c24
frame pointer            = 0x10:0xc1021c30
code segment             = base 0x0, limit 0xfffff, type 0x1b
                         = DPL 0, pres1, def32 1, gran 1
processor eflags         = interrupt enabled, resume, IOPL = 0
current process          = 0 (swapper)
trap number              = 12
Uptime: 1s

>How-To-Repeat:
 Boot FreeBSD 5.3 floppies.
>Fix:
      
>Release-Note:
>Audit-Trail:
>Unformatted: